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<?php $string = ' background: url(../../path/image1.png); background: url(../../../path/image2.png); background: url(../../../path/image3.png); '; echo preg_replace('/\(\K[\/.]+/', '../', $string);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/hkjsm
function name:  (null)
number of ops:  5
compiled vars:  !0 = $string
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, '%0A++++background%3A+url%28..%2F..%2Fpath%2Fimage1.png%29%3B%0A++++background%3A+url%28..%2F..%2F..%2Fpath%2Fimage2.png%29%3B%0A++++background%3A+url%28..%2F..%2F..%2Fpath%2Fimage3.png%29%3B%0A'
    9     1        FRAMELESS_ICALL_3                preg_replace        ~2      '%2F%5C%28%5CK%5B%5C%2F.%5D%2B%2F', '..%2F'
          2        OP_DATA                                                      !0
          3        ECHO                                                         ~2
          4      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


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